Process and apparatus for producing a twisted elastic thread

Details Process and apparatus for producing a twisted elastic thread Process and apparatus for producing a twisted elastic thread

1981-04-01

1983-06-21

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

57 6, 57 78, 57 93, 57 97, 57264, D01H 1310, D01H 126, D01H 130

Patent

active

043888011

ABSTRACT:
A process and apparatus for producing a twisted elastic thread in which an elastomeric thread of substantially 154 dtex to 310 dtex, is adhesively twisted with two yarns. The thickness of each of the two yarns is substantially of 100 to 12,500 dtex, and the yarns preferably are OE yarns of polyvinyl chloride, polyvinyl cyanide, polyacrylonitrile and/or wool threads, preferably produced by the rotor process. Prior to twisting, the yarns are surface-swelled under a vacuum between substantialy 0.1 and 0.2 bar in superheated steam at substantially 70.degree. C. for up to ten minutes for loosening purposes. During twisting, a pre-tension is imparted to the elastomeric thread with respect to the yarns. Such pre-tension is imparted to the elastomeric thread only a predetermined time after starting the twister, and the elastomeric thread is pre-tensioned by substantially 2 to substantially 5 times compared with the yarns.

REFERENCES:
patent: 2310951 (1943-02-01), Greene
patent: 3099126 (1963-07-01), Laureti
patent: 3460338 (1969-08-01), Morrison
patent: 3489368 (1970-01-01), Rehwald
patent: 4028874 (1977-06-01), Magg et al.
patent: 4276739 (1981-07-01), Kempf et al.
patent: 4288977 (1981-09-01), Csaky et al.

Affiliated with

Also associated with

Rating

Process and apparatus for producing a twisted elastic thread does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and apparatus for producing a twisted elastic thread, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for producing a twisted elastic thread will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2105748